Controls And Settings - A.O. Smith T-H3J-DV Service Manual

12. Controls and settings

12-1. Diagnosis using the temperature controller and temperature remote controller..........59
12-2. Verifying functionality of computer board......................................................................63
12-3. Displaying error code history, Clearing error code history memory, and Display
patterns for error codes...................................................................................................64
12-4. Clearing the "101" and "991" error code........................................................................65
12-5. AFR rod function..............................................................................................................66
12-6. DIPswitch settings............................................................................................................67
12-7. Assigning unit numbers in the Easy-link system (Only 540 (T-H3) models).....................70
12-8. (A) ON/OFF conditions: Overview....................................................................................71
12-8. (B) ON/OFF conditions: BTU requirements......................................................................72
12-9. Multi-unit system ON/OFF conditions (Only 540 (T-H3) models)....................................73
12-10. Operation time for unit rotation (Only 540 (T-H3) models)............................................74
12-11. Individual unit operation in easy-link system while parent unit is under
abnormal conditions (Individual operation mode) (Only 540 (T-H3) models)................75
12-12. Easy-Link connections with previous models..................................................................76
12-13. High-Altitude Region Support Functions ........................................................................79
12-14. Adjusting manifold gas pressure......................................................................................83
12-15. Manually adjusting the fan motor speed (Only 540 (T-H3) models)...............................85
12-16. Freeze protection system.................................................................................................86
12-17. Draining the unit and cleaning the inlet water filter.......................................................88
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
58
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CONFIDENTIAL
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